Home / 9,641,009.70-13,304,148.21-5,289,987.78

Finding the Fourth Proportional to 9,641,009.70, 13,304,148.21 and 5,289,987.78

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Solution

The fourth proportional to 9,641,009.70, 13,304,148.21 and 5,289,987.78 is: 7,299,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,641,009.70 : 13,304,148.21 = 5,289,987.78 : x
  2. Step 2: Convert to fraction form
    9,641,009.70/13,304,148.21 = 5,289,987.78/x
  3. Step 3: Cross multiply
    9,641,009.70x = 13,304,148.21 × 5,289,987.78
  4. Step 4: Simplify right side
    9,641,009.70x = 70,378,781,454,208.88
  5. Step 5: Solve for x
    x = 70,378,781,454,208.88/9,641,009.70
  6. Step 6: Final answer
    x = 7,299,938.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.